If you take your mother's surname, Chi Ideality, Chi and Chi are all acceptable. And Chi Xuanxin, these are very clever names. Two words, Chi Xin (heart), Chi Ying (I think it is best to add A Ying), Chi Lu (dew) and so on.
With dad's last name, well, I'm sorry it's not too inspiring.
If you want a better four-word name, then I will provide you with one: Love to eat fish (or love to eat Yu Ying).
Don't think too much at the moment, please accept it.